Improvement in hand-looms



UNITED lSTATES PATENT OFFICE yJOHN SEAMAN AND WM. Y. HENDERSON, OFANDOVER, NEW YORK.

IMPROVEMENT lN HAND-LOOMS.

Specification forming part of Letters Patent No. 50,041. dated September19, 1865.

To all whom it may concern:

lBe it known that we, JOHN SEAMAN andf WILLIAM Y. HENDERSON, of Andover,in the county of Allegany and State of New York, have invented a new anduseful Improvement in Looms, and we do hereby declare that the followingis a full, clear, and exact description thereof, which will enable thoseskilled in the art to make and use the saine, reference being had to theaccompanying` drawings, Jforming part of this specification, in which-Figure l represents a plan or top view of this invention, a portion ofone ofthe shuttleboxes beingremoved the better to display other parts.Fig. 2 is a longitudinal vertical section of the same.

Similar letters of reference indicate like parts.

The object ot' this invention is to construct a hand-loom so that themotions both of the harness and ot' the shuttle shall depend upon themotion ofthe lay or hatten. The harness motion is ed'ected by an armextending from the hatten and connected by a pivot with a levercatchthatacts upon a lantern-,shaped cam mounted on the treadle-shaft, incombination with suitable arms or tappets inserted in said treadle shaftin such a manner that for each stroke of the batten a quarter-revolution(more or less) is imparted to the treadle-shaft and the harness ischanged by the action ot" the tappets on the treadles. Theshuttle-motion is effected by means of sliding blocks secured in eachend of the batten and operated each by a spring lever or driver, whichis set automatically by the combined action of square disks,hook-catches, and cams in such a manner that on each forward stroke ofthe hatten a partial revolution is imparted to each of the square disksand the driver on 011e end of the hatten is set, while that on the otherend (having been set on the previous stroke) is liberated, and by itsaction on the sliding block connected to it the shuttle is propelled tothe opposite end of the batten.

A represents a frame, made of wood or any suitable material in the usualform and shape ot' frames for looms. One end of this frame forms thebearings for the yarn-beam C, and the other end supports the breast-beamD, which is situated above the cloth-beam E, having its bearings insuitable boxes secured to the uprights ofthe frame A in the usualmanner.

From the upper side ot' the side rails of the loom rise two uprights, F,which support the heddle-bearer G, and from this heddle-bearer extendtwo forked arms, c, which form the bearings for the axles of rollers a,supporting cords b, from the ends of which the heddles H vare suspended.Said heddles are constructed in the usual manner, each of two shafts,one on top and one on bottom, and the lower shafts connect by wires @orother suitable connections with the treadles I. These treadles areconnected by pivots f to standards g, rising from a cross-bar, h, of theframe A, or they may be arranged in any other convenient position, andthey are alternately depressed by the action of tappets t'. Thesetappets are secured in the proper positions in the treadle-shaft J, towhich an intermittent rotary motion is imparted by the action of ahooked lever-catoh,j, on a lantern-shaped disk, k, which is mounted onsaid treadleshai't, as shown in Fig. 2 of the drawings. y

The lever-catch j is connected by a pivot, l, to an arm which issuspended from the sole ot' the lay or batten L, and it (thelever-catch) is guided by a slotted standard, n, rising from thecross-bar o ot the frame A. It is so shaped that on theforward strokeofthe lay its hook catches over one ofthe projecting corners of the diskIt, and on the backward stroke of thelay a quarterrevolution is impartedto said disk and to the treadleshaft and by the consequent action of thetappets 'i on the treadles the requisite harness Inotion is produced.'It is obvious that more than two heddles may be operated by thisarrangement, and we do not wish to confine ourselves to the precisenumber ot heddles shown in the drawings. It must also be remarked thatthe disk 7c, instead of being made with four projecting corners orteeth, might be made with more or less such teeth 5 or, instead of this,wires might he inserted in its sides or two disks might be usedconnected by wires similar to pinions in Watch or clock movements,though we use, by preference, a disk such as shown in the drawings,because the same can be easily made and secured to the treadle-shatt inthe proper position.

The tappets v3 (shown in the drawings) com sist of simple wiresyinserted in the treadleshaft at right angles to each other7 so as tocorrespond to the number of teeth on the disk 7c. If the number of theseteeth is changed, the

to receive. the shuttle, and with a sliding block,"

r', which acts on the shuttle and causes it to fil y from one end oftheshuttle-race to the other.

Each ot' the blocks r is provided with a socket to receive a stud, s s',which projects from the upper surface of the driver or spring-l.

These drivers have their fulcra on pivots uw, secured in arms t o',which extend lever t t.

from the sole of the lay toward the heddlebearer G, as clearly shown inthe drawings, and they (the drivers) are subjected to the action ofstrong springs w w', that have a tendency to force the same inward,causing the sliding blocks 1^ to bear against projections in'` side theboxes g g.

In order to set the drivers and to release them attheproperintervals,cam-disksaza21 are employed7 which turn on suitablestuds rising from the arms o v', and which are situated under thesliding blocks r', as shown particularly in. Fig. 2 of the drawings.Said camdisks are provided with four (more or less) teeth, b2 b21, ontheir peripheries, and with two (more or less) cams, c2 c, on theirupper surfaces and as the lay moves in toward the heddles the teeth b2b21 catch against spring-hooks d2 d, and a quarter-revolu tion (more orless, according to the number of teeth) is imparted to eaeh of thecam-disks a2 1.21. By this motion the cams c2 021 on the surfaces of thecamdisks are brought in contact with shoulders on the under side of thedrivers t t', and the drivers are forced back against the action of thesprings w' fw', and on the next stroke of the lay the driver previouslyset is released and allowed to impart to the sliding block an impulsewhich causes the shuttle to ily from one and of the shuttle-race to theother. At the beginning of the operation the cam-disks a2 a21 are placedin such a position that While one of the drivers is being set the otheris released, and vice versa, so that on each forward stroke of the layone of the drivers is in the proper position to propel the shuttle.

It is obvious that the number of teeth on the peripheries of thecam-disks and the number of cams on their surfaces may be varied withoutaltering the result, and we do not wish to confine ourselves in thisrespect to the precise arrangement shown in the drawings.

By this construction of ,the loom the operator is enabled to produce allthe requisite motions of the loom by imparting to the lay an oscillatingmotion, for it will be readily understood that the let-oft' motion canbe governed by the motion of the lay in any of the well- -known methods.

We claim as new Iand desire to secure by Letters Patent- 1. The driverstt and cam-disks a2 a, in combination with the lay L and with theshuttle of a loom, constructed and operating substantially as hereindescribed.

2. The method herein described of producing the motion of the heddlesand that of the shuttle by the action of the batten, as and for thepurpose set forth.

JOHN SEAMAN. WILLIAM Y. HENDERSON.

Witnesses:

M. H. HARMAN, A. C. S'rrLs.

